A083577 - OEIS

%I #40 Mar 05 2024 10:18:28

%S 13,37,73,181,337,433,541,661,937,1093,2053,2281,2521,3037,3313,5581,

%T 5953,6337,6733,7561,7993,8893,10333,10837,11353,12421,12973,13537,

%U 15913,18481,20533,21961,25741,27337,32413,33301,36037,36973,42841

%N Primes in A003154.

%C Except for the first 3 terms, a subsequence of A057199 (see comment in A057199). - _Chai Wah Wu_, Sep 16 2019

%C All terms are primes of the form 4*k + 1 (A002144), because terms of A003154 are of the form 12*k + 1. - _John Elias_, Jan 25 2021

%H Zak Seidov, <a href="/A083577/b083577.txt">Table of n, a(n) for n = 1..1000</a>

%t Select[Array[6*#*(#-1)+1 &, 100], PrimeQ] (* _Paolo Xausa_, Mar 05 2024 *)

%o (PARI) for(n=1,150,s=6*n*(n-1)+1; if(isprime(s),print1(s",")))

%Y Cf. A002144, A003154.

%K easy,nonn

%O 1,1

%A _Jason Earls_, Jun 13 2003